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Finding the Fourth Proportional to 284,450.40, 426,672.90 and 115,931.16

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Solution

The fourth proportional to 284,450.40, 426,672.90 and 115,931.16 is: 173,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,450.40 : 426,672.90 = 115,931.16 : x
  2. Step 2: Convert to fraction form
    284,450.40/426,672.90 = 115,931.16/x
  3. Step 3: Cross multiply
    284,450.40x = 426,672.90 × 115,931.16
  4. Step 4: Simplify right side
    284,450.40x = 49,464,684,237.56
  5. Step 5: Solve for x
    x = 49,464,684,237.56/284,450.40
  6. Step 6: Final answer
    x = 173,895.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.